Zehnder Caladair Freetime Smart First Commercial MVHR Units

Product Part Number:

Caladair FREETIME 500 First Eco - CAL19
Please Note – These units are built to order. For lead time details on these Caladair Freetime Commercial Units, please contact our sales team at 028 2827 5150.

Description

Top-quality commercial heat recovery unit, vertically mounted. Each unit is individually manufactured to suit multiple applications and specifications. The Freetime range is a self-regulating dual-flow handling unit with MODBUS communication, dedicated to tertiary sector and industrial applications.

Dimensions

Model	Length (mm)	Width (mm)	Height (mm)
500	900	570	970
800	1080	700	1090
1500	1400	750	1140
2000	1500	830	1220
2700	1610	920	1420
3500	1730	1085	1420

Models Available

• SEASON: For temperate climate zones, ideal for air circulation in buildings with energy recovery. Includes bypass summer/winter mode, adjustable flow rate via potentiometer. No self-regulation, no coil or battery.
• FIRST: Self-regulating unit for temperate climates with temperature management for optimal energy consumption and comfort. No integrated coil or battery.
• PREMIUM BE: Same as FIRST, but with an electric heater for temperatures as low as -20°C.
• PREMIUM BC: Same as FIRST, but with a hot water heater for exterior temperatures as low as -20°C.

Controllability

There are four available control options:

• Lobby: LCD controller for constant pressure fan control.
• Diva: Integral CO₂ sensor with airflow management via LCD controller.
• Mac2: Constant airflow between 2 adjustable airflows.
• Quattro: Integral CO₂ sensor for airflow modulation between 2 adjustable constant airflows.

LCD Controller Functions:

• Weekly timer
• Holiday timer
• Summer bypass - night-time cooling
• Fault finding
• Speed parameters
• Filter indicator
• Fire alarm integration
• Temperature sensors
• Integration via Modbus, Bacnet, or Web

Filtration

• 1x F7 filter on the supply air and a G4 filter on the extracted air.

Construction

• Outer Construction: Airtight 10-gauge galvanized steel double-skin panels with 25mm high-density mineral wool insulation in accordance with EN1886.
• External Face: Pre-lacquered with a protective film in RAL 7035.
• Connections: Circular branch connections with rubber seals. Airtight construction to ATEC CSTB n° 13-224-12.

Heat Exchanger

• Highly efficient aluminium rotary heat exchanger providing up to 80% heat recovery. Built for long-lasting performance.

Motors

• High-efficiency direct-drive DC motors with electronic commutation (EC), thermal protection, and built-in variable speed.
• Econological® EC technology ensures low energy consumption (RT2012).
• Low noise levels for improved acoustic comfort.

Installation

• Vertical Mounting: The unit is mounted on the floor.
• Condensate Drain: 15mm BSP metal pipe provided for connection to a drain via a waterless trap.

Insulation of Ductwork

• Recommended Ducting: Use Metal Spiral ducting and fittings for superior strength.
• For optimal airtightness and durability, use self-sealing fittings or a combination of Ducting Sealant and Aluminium Duct Sealing Tape.
• Cold Area Ducting: Ensure 25mm thick insulation with a thermal conductivity of 0.04W/(m.k) or less.
• Tip: If ducting is in a loft space, insulate to prevent condensation from forming.

Accessories

• A full range of compatible ducting systems, controls, sensors, in-line silencers, and floor/wall/ceiling inlet and outlet diffusers available to complete your installation.

Guarantee

• 2-Year Parts Guarantee for peace of mind.

The Zehnder Caladair Freetime Smart First Commercial MVHR Units offer exceptional performance, energy efficiency, and reliability for tertiary sector and industrial applications.